Power-operated razor



P. SERE NE.

POWER OPERATED RAZOR.

I APPLICATION FILED MAR. 4, 1922.

PatentedSept. 12, 1922.

,f w, e ene V INVENTOR.

0 ATTORNEYS Patented Sept. 12, 1922.

UNITED STATES 1,428,565 PATENT OFFICE.

PAUL SERENE, OF YOUNGSTOWN, OHIO, ASSIG-NOIR. OF ONE-THIRD T0 .13. F. DONNELL AND ONE-THIRD TO B. P. HIGBY, BOTH OE YOUNGSTOWN, OHIO.

i .POWER-OPERATED RAZOR.

Application filed March 4, 1922. Serial No. 540,954.

To all whom it may concern:

Be it known that I, PAUL SERENE, a'citizen of the United States, and a resident of Youngstown, county of Mahoning, and State of Ohio, have invented a new and useful Improvement in Power-Operated Razors, of which the following is a specification, the principle of the invention be ing herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The present invention relates to a power driven razor in which provision is made for reciprocating the blade vertically, that is, at a right angle to the edge of the blade of therazor, and further provision is made for enclosing the operating means and the blade in a suitable housing in such a manner that the finished razor will be small and compact and readily usable by a barber or other person. This razor is particularly adapted for use by barbers being of the straight blade type rather than the hoe type of razor. To the accomplishment of the foregoing and related ends, said invent-ion, then, consists ofthe means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the fol-lowing description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing Fig. 1 is a side elevational view of the device showing the comparative size of the same; Fi 2 is an enlarged side elevational View of the razor; Fig. 3 'is a longitudinal section through the razor showing the driving mechanism; Fig. 4 is a sectional View on the line 4.4: of Fig. 3; and Fig. 5 is a sectional view similar to Fig. 4 but showing the driving mechanism in a different position.

The present razor is of the usual straight blade type having a handle 1 which is pro-- vided with an aperture or bore 2 to receive the rotatable driving shaft 3, this shaft being connected at the outer end of a suitable flexible drive shaft 4 adapted to be driven from any source of power. This razor handle has an extended end 5 which carries the blade and operating mechanism and the housing for the same. The housing consists of two members 6 and 7 which have complementary engaging portions 8 at the top which are apertured to receive a pin or rod guard member 14 which is provided with n a shoulder 15 at its upper portion adapted to fit snugly against' a complementary shoulder 16 on the housing member' 7 to which it is attached by means of a screw 17 engaging in suitable threaded aperturesin the housing member and the guard. The guard extends below the edge of the razor blade and at the lower end is provided with a series of teeth 18 having cylindrical guard points 19 at the bottom so as to act as'a safety guard for the razor blade proper.

The driving mechanism consists essentially of a shaft or crank 20 which is eccentrically attached to a cylindrical portion 21 which is provided with a centrally threaded aperture 22 adapted to be engaged with the driving shaft 3 and this cylindrical portion is in the housing. At the outer end of the handle is mounted another cylindrical portion 23 which is carried in a bearing in the front end of the housing and this cylindrical l member has a spherical end 24 which is held in position by means of a set-screw 25 hav ing a concave end 26 acting as a thrust hearing for the end of the cylindrical portion. Thus the shaft 3 has, a crank action and this shaft carries a tube 27 havin a downwardly extending flan e 28 en ing in a. series of cylindrical teet 30 which are provided with aligned apertures 31. The razor blade has-" at its upper ed e a complementary series of cylindrica teeth 32 with aligned apertures 33, the teeth fitting snugly between the teeth on the driving tube. To secure the blade to this driving tube, a rod 34 is passed through the aligned apertures, thus securing the blade to the tube but allowing the blade to rock relatively to the tube in order to allow the blade to have a Vertical motion while the tube has not only a vertical but also a rocking motion. These cylindrical teeth tit within the elongated slot within the housing which forms a guideway and thus gives the blade a rcciprmating motion as the driving tube is carried around by means of the eccentric shaft or crank.

The present razor, as shown in Fig. 1, presents approximately actual size. while the other figures are considerably enlarged in order to better show the actual operating mechanism. In a razor of this type it is necessary to maintain the size close to the limits in size of the ordinary straight bladed razor and the present razor is adapted to be made with a blade length not exceeding three inches, and with a total depth of approximately one and ()llP-llilli to threequarters of an inch. In this way the length of stroke ot' the blade may be. kept within very small limits, and the blade stroke is preferably not to exceed ore-sixteenth of an inch and may even be less. The blade should be reciprocated very rapidly and thus as the razor is drawn over the face, the reciprocation ot' the blade cuts the hairs and the necessary transverse action is obtained by the movement of the razor as a whole instead of by any longitudinal movement of the blade. As previously stated, this type of razor is particularly adaptable for use by barber's or others who shave individuals, as the hoe-type 0t razor cannot be satisfactorily used by one person in shaving another. \Yhile the guard is not necessary, itaids in allowing the barber to properly angle the razor to the face and also aids in the safety of the razor.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such, stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In a power operated razor, the combination of a handle having a longitudinal aperture, a two part hinged housing connected to said handle, an eccentric driving crank mounted in said housing, a rotatable driving shaft in said handle operatively connected to said crank to rotate the latter, a driving tube mounted on said crank in said housing, a blade hinged to said tube and extending outwardly between said housing members and adapted to be reciprocated at right angles to the blade by reciprocation of said driving tube.

2. In a power operated razor, the combi nation of a housing comprising two members hinged together at the top and forming a hollow casing, a handle attached to said housing, said handle being provided with a longitudinal aperture, a driving shalt rotatably mounted in said handle, an eccentric driving crank mounted in said housing and operatively connected to said drive shaft, a driving tube rotatably mounted on said crank and having a driving flange extending downwardly in said housing, a razor blade reciprocably mounted between said two housing members and pivotally attached to said driving flange to be reciprocated thereby upon rotation of said crank.

8. In a power operated razor, the combination ot a housing comprising two members hinged together at. the top and forming a hollow casing, a handle attached to said housing, said handle being provided with a longitudinal aperture, a driving shaft rotatably mounted in saidhandle, an eccentric driving crank mounted in said housing and operatively aronnected to said drive shaft, a driving tube rotatably mounted on said crank and having a driving flange extending downwardly in said housing, a razor blade reciprocably mounted between said two housing members and pivotally attached to said driving flange to be reciprocated. thereby upon rotation of said crank, and a guard member having teeth at its lower edge attached to one of said housing members and extending below the edge of said razor blade.

4. In a power operated razor, the combination of a housing comprising two bulged members hinged together at the top to form a hollow *asing having a longitudinal. cylindrical chamber and an elongated chamber, said two members being spaced apart at their lower edge to form av narrow slot, a handle attached to said casing and having a longitudinal aperture in a ignment with such cylindrical chamber, a driving shaft rotatably mounted-in such handle aperture, a driving crank having an eccentric crank portion rotatably mounted in such chamber and operatively connected to said driving shaft, a flanged driving tube pivotally mounted on said crank and having its flange extending into such elongated chamher, and a razor blade reciprocably mounted in such slot between said housing members and pivotally connected to said flanged driving tube and adapted to reciprocate therewith upon rotation'of =said d riving shaft and crank.

5. In a power operated razor, the'combination of a housing comprising two bulged members hinged together at the top to form a hollow casing having a longitudinal cylindrical chamber and an e. ngated chamber, said two members being spaced apart at their lower edge to form a narrow slot, a handle attached to said casing and having a longitudinal aperture in alignment with such cylindrical chamber, a driving shaft rotatably mounted in such handle aperture, a driving crank having an eccentric crank portion rotatably mounted in such chamber and operatively connected to said driving shaft, a flanged driving tube pivotally mounted on said crank and having its flange extending into such elongated chamber, a razor blade reciprocably mounted in such slot between said housing members and pivotally connected to said flanged driving tube and adapted, to! reciprocate therewith upon rotation of said driving shaft and crank, and a guard member attached to one of said housing members and extending adjacent to and below said blade.

6. In a power opera-ted razor, the combination of a housing comprising two bulged members hinged together at the top to form a hollow casing having a longitudinal cylindrical chamber and an elongated chamber, said two members being spaced apart at their lower edge to form a narrow slot, a handle attached to said casing and having a longitudinal aperture in alignment with such cylindrical chamber, 'a driving shaft rotatably mounted in such handle aperture, a driving crank having an eccentric crank portion rotatably mounted in such chamber and operatively connected to said driving shaft, a flanged driving tube having an upper tubular portion rotatably mounted on said driving crank in said cylindrical chamber, and provided with a downwardly extending flange provided with a series of tubular portions provided with aligned apertures in such elongated chamber, the sides of which act as guideways to obtain a reciprocating motion from said driving tube upon rotation of said crank, a razor blade mounted for reciprocation in the slot between said housing members, and provided at its upper edge in such elongated chamber with tubular portions provided with aligned apertures adapted to fit between the tubular portions on said driving tube, and a rod mounted through such apertures in said tubular portions on said razor blade and driving tube to pivotally connect the same so as to reciprocate said blade with said tube.

7. In a power operated razor, the combination of a housing comprising two bulged members hinged together at the top to form a hollow casing having a longitudinal cylindrical chamber and an elongated chamber, said two members beingspaced-apart at their lower edge to form a narrow slot, a handle attached to said casing and having a longitudinal aperture in allgnment with such cylindrical chamber, a driving shaft rotatably mounted in such handle aperture, a driving crank having an eccentric crank portion rotatably mounted in such handle aperture, a driving crank having an eccentric crank portion rotatably mounted in such chamber and operatively connected to said driving shaft, a flanged driving tube having an upper tubular portion rotatably mounted on said driving crank in said cylindrical chamber and provided With a downwardly extending flange provided with a series of tubular portions provided with aligned apertures in such elongated chamber,the sides of which act as guideways to obtain a reciprocating-motion from said driving tube upon rotation of said crank, a razor blade mounted for reciprocation in the slot between said housing members, and provided at its upper edge in such elongated chamber with tubular portions provided with aligned apertures adapted to fit between the tubular portions on said driving tube, a rod mounted through such apertures in said tubular portions on said razor blade and driving tube to pivotally connect the same so as to reciprocate said blade with said tube, and a guard member attached to one of said housing members and extending below said blade, said guard member terminating in teeth having rounded ends adapted to act as a safety guard for said razor blade.

Signed by me, this 28th day of February,

PAUL SERENE. 

